TikTok ceased operations in the U.S. Saturday night, hours before a nationwide ban took effect, citing a law requiring its sale to a U.S. entity. The Supreme Court upheld the ban, triggering app store removals and server restrictions. However, TikTok hinted at a swift return, noting President-elect Trump’s potential 90-day extension. The blackout leaves 170 million U.S. users and businesses in limbo, with bipartisan concerns over data security driving the ongoing controversy. Trump’s inauguration may determine TikTok’s fate.